In the show ccm command, the first line has the domain name MGCP is using.
MGCP Domain Name: AFIGW2821.yourdomain.com
Now, I have ran into an issue where IOS was sticking yourdomain.com as the domain-name when we didn't configure it at all once. When we removed the domain name a few minutes later the domain command re-appeared all by itself with yourdomain.com as the domain. On that one, we went ahead and used the clients domain name and the problem went away.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.